Distribution
Woolley monkeys, Lagothrix lagotricha, includes the four allopatric subspecies L.l. lagotricha, L.l. poeppiggi, L.l. cana, and L.l. lugens. Though there has been some disagreement within the literature, general consensus is that the native range of L. lagotricha occurs throughout the upper Amazonian basin and adjacent regions, including the eastern slope of the Cordillera Central of Eastern Peru, West of the Rios Negros Tapajos, in the Colombian drainage of the Orinoco south of Rio Arauca, and the upper Rio Magdalena Basin of southern Colombia. This includes regions of western Brazil, eastern and central Colombia, eastern Ecuador, eastern Peru, and northern Bolivia may also be included. These regions include an elevation range from sea level to 3,000 meters. Historical discrepancies in the range and habitat of L. lagotricha which were informed from descriptions of specimens collected from the lower Rio Amazonas and the lower Guianan region may be attributed to mislabeled individuals and specimens moved from other locations.[1]
Habitat
Groups of L. lagotricha have been studied in the eastern Colombian Amazon,[2] in Yasun´ı National Park in the Amazon region of Ecuador,[3] near the headwaters of the Urucu river in Tefe, Amazonas, Brazil,[4] and in Tingua National Park, Colombia.[5][6] There is considerable variation between the different L. lagotricha research sites studied and soil fertility, plant community differences, as well other factors seem to influence ranging patterns. An increase in the size of home ranges has been correlated with an increase in group size, and ranging may also be affected by soil fertility, as well as floristic diversity.[2] The forests which are most diverse floristically are preferred, correlated with habitat types which provide the best possibilities for locating fruits and leaves.[6]
The L. lagotricha geographic range includes large, intact forests, lowland rainforest, terra firme rainforest, old-levee forest, cloud forest, low-ground forest, seasonally flooded forest, hilly forest, terrace forest, transition forest, igapó forest, creekside lowland forest and palm swamps.[7] Research shows that mature forests are consistently preferred due to the increased availability of fruit and leaves.[6] Woolly monkeys tend to avoid open-degraded forests, which is correlated with lower fruit production than in mature forests.[6]
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- ^ Fooden, Jack (1963). "A Revision of the Woolly Monkeys (Genus Lagothrix)". Journal of Mammalogy. 44 (2): 213–247. doi:10.2307/1377454. JSTOR 1377454 – via JSTOR.
- ^ a b Defler, T. (1996). "Aspects of the Ranging Pattern in a Group of Wild Woolly Monkeys (Lagothrix lagothricha)". American Journal of Primatology. 38 (4): 289–302. doi:10.1002/(SICI)1098-2345(1996)38:4<289::AID-AJP1>3.0.CO;2-V. PMID 31918484. S2CID 85137196 – via ResearchGate.
- ^ Di Fiore, A (2001). "Time allocation patterns of lowland woolly monkeys (Lagothrix lagotricha poeppigii) in a neotropical terra firma forest". International Journal of Primatology. 22 (3): 449–480. doi:10.1023/A:1010759729567. S2CID 34952503 – via Springer.
- ^ Peres, C. A. (1994). "Diet and feeding ecology of gray woolly monkeys (Lagothrix lagotricha cana) in Central Amazonia: Comparisons with other Atelines". International Journal of Primatology. 15 (3): 333–372. doi:10.1007/BF02696098. S2CID 42459327.
- ^ Stevenson, P. R. (1998). "Proximal spacing between individuals in a group of woolly monkeys (lagothrix lagotricha) in Tinigua National Park, Colombia". International Journal of Primatology. 19 (2): 299–311. doi:10.1023/A:1020335716853. S2CID 28345630.
- ^ a b c d Stevenson, P. R. (2006). "Activity and ranging patterns of colombian woolly monkeys in north-western amazonia". Primates. 47 (3): 239–247. doi:10.1007/s10329-005-0172-6. PMID 16505944. S2CID 10831742 – via Springer.
- ^ Gron, KJ (2010 September 30). "Primate Factsheets: Woolly monkey (Lagothrix) Taxonomy, Morphology, & Ecology". Primate Info Net. Retrieved 2017 August 15.
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